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ソ/SO/    サク/SAKU/    さかのぼ.る/sakanobo.ru/SO/ソ/    SAKU/サク/    sakanobo.ru/さかのぼ.る/

go upstream;  retrace the past

Radical: 辶 (walk).   Strokes: 13/14画.   Elements: 月辶并屮.   Variants: 溯.   Pinyin: sù.   Hangul: 소 [so].

Jōyō Kanji High School.

Example compounds:
ソSO遡及的【そきゅうてきsokyūteki】retroactive
遡上【そじょうsojō】going upstream; retroact; retrospect
遡行【そこうsokō】going upstream; sailing against the current
サクSAKU遡源【さくげんsakugen】returning to the origin; going back to the beginning; retracing
さかのぼるsakanoboru遡る【さかのぼるsakanoboru】to go upstream; to go back (in time, to origin)
Codepoints and classification codes:
9061–Unicode
33-44–JIS X 0208
3-3-10–SKIP
3a10.2–TKD
3730.2–Four Corner
Dictionary indices:
4727–Classic Nelson
6094–The New Nelson Character Dictionary by A. Nelson
3257–New Japanese-English Character Dictionary by J. Halpern
2847–Remembering the Kanji by J. Heisig
39048X–Daikanwajiten 「大漢和辞典」 by T. Morohashi vol. 11 p. 160
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